A genus honouring Eddie Esteves Pereira (1939-), Brazilian botanist and specialist of the Cactaceae of this country, and who discovered this taxon (see portrait above, cLinda Borges).
Monospecific genus of plants with cylindrical stems of medium size (up to 50cm in height and 3cm diameter max.), cereiform, with tap roots, branching from the base; ribs 7-10, obtuse, slightly crenulate. Areoles tomentose, bearing many straight spines (about forty), finely aciculate, pale yellow.
Flowers nocturnal, self-sterile, appearing towards the top of stems, 13.5-17cm long, erect, funnel-shaped, white, with a long floral tube having some spines on fluffy areoles. Fruits egg-shaped to elongated, yellow, fleshy with a juicy pulp, floral remains persistent. Seeds rough, tuberculate, black.
The monotypic genus Estevesia grows at approximately 790 m in altitude, in the Brazilian campo cerrado, a type of shrubby savannah, on granitic outcrops, among grasses and bushes, together with Bromeliads (Bromelia, Dyckla, Aechmea), as well as Epiphyllum phyllanthus.
Currently only one recognised species:
– Estevesia alex-bragai P.J.Braun & Esteves 2009
References: "TAXONOMY of the CACTACEAE" - ISBN 978-84-617-3723-9 (Vol. 1)